本文選題：Goodman模型 + Gerber模型�。� 參考：《航空材料學(xué)報》2016年02期

【摘要】：在實際工程應(yīng)用中,基于Goodman模型估算結(jié)構(gòu)細節(jié)疲勞額定強度(DFR)的方法偏于保守,不夠經(jīng)濟。本工作推導(dǎo)基于Gerber模型的DFR值D(應(yīng)力比R=0.06)的計算公式,引入細節(jié)效應(yīng)系數(shù)以考慮多細節(jié)對置信度系數(shù)和D估算結(jié)果的影響;與已有結(jié)果的比較發(fā)現(xiàn):基于Gerber模型的D的估算方法能夠較大程度地發(fā)揮材料的潛能,降低研發(fā)成本。利用構(gòu)件細節(jié)額定值系數(shù)法,通過單個細節(jié)結(jié)構(gòu)的D估算了含多個細節(jié)的結(jié)構(gòu)的D。估算結(jié)果與試驗結(jié)果的比較驗證了基于Gerber模型的DFR法的準確性和適用性。
[Abstract]:In practical engineering applications, the method of estimating structural detail fatigue rating strength (DFR) based on the Goodman model is conservative and not economical. This work derives the calculation formula of DFR value D (stress ratio R=0.06) based on Gerber model, and introduces the detail effect coefficient to consider the influence of the confidence coefficient and the estimation results of D in detail, and the existing results. It is found that the estimation method of D based on the Gerber model can greatly exert the potential of the material and reduce the R & D cost. By using the component detail rating coefficient method, the D. estimation results of the structure with multiple details are estimated by the D of the single detail structure and the comparison of the test results to verify the accuracy of the DFR method based on the Gerber model. Sex and applicability.
【作者單位】： 中國飛機強度研究所;
【基金】：中航工業(yè)技術(shù)創(chuàng)新基金資助項目(2014A62353R)
【分類號】：V215.5
，

本文編號：1979570